Prevalences of primary headache symptoms at school-entry: a population-based epidemiological survey of preschool children in Germany

por Ostkirchen, G. G., Andler, F., Hammer, F., Pöhler, K. D., Snyder-Schendel, E., Werner, N. K., Markett, S., Horacek, U., Jöckel, K. H., Diener, H. C.
Publicado 2006